Device for diffusing one or several fluid product doses, and device for applying a temporary adhesive tattoo using same

ABSTRACT

A device for diffusing one or several fluid product doses, each dose being contained in a sealed reserve defined by an envelope made of a flexible and ductile material, such that a collapsing pressure applied on the reserve causes the envelope to burst open releasing the product contained in the reserve. The envelope is locally provided with at least a weakened zone forming a pre-opening, so as to cause the envelope to burst open at the pre-opening, thereby channelling the product through the pre-opening in a predetermined direction.

The present invention relates to a device for delivering one or moredoses of a fluid product, such as a liquid, creamy, gelatinous orgaseous product, as well as to a device for the application of anadhesive temporary tattoo using the aforementioned delivery device. Thedelivery device of the invention applies especially to the delivery of apharmaceutical, cosmetic, food, hygiene, perfumery andhousehold-cleaning product.

In the field of perfumery and cosmetics, it is common practice todistribute free samples to the public which contain a small dose ofproducts, in order to promote the product and to satisfy the public'scraze for this type of sample. These product samples are generallypackaged in small bottles or sachets which are provided with a removablestopper, with a spray device, with a tearable tab or with a breakingline for delivering the product. These delivery means have a relativelyhigh manufacturing cost given that they are used only once, they aredifficult to handle and, furthermore, run the risk of injuring the user.

A known device of this kind comprises a plastic package or a blisterpack defining one or more cavities containing a generally liquidproduct, the package or the blister pack having a tab intended to bebroken by bending, in order to gain access to the cavity.

Another known device comprises a first moulded plastic film defining acavity for housing the product therein and a second film closing off thesaid cavity, it being possible to remove or tear the said second film inorder to gain access to the cavity.

Blister packs of this type are also used for packaging medicines in theform of tablets or capsules, as well as for packaging soft contactlenses.

Also known, in the food field, are tearable plastic sachets intended tocontain a dose of tomato sauce or salad dressing.

In the hotel industry, such sachets are also used to provide customerswith independent doses of shampoo or liquid soap.

It will also be noted that such a device can be used for containingdeodorizing doses for diffusing a perfumed gaseous product contained ina sachet or bottle into the ambient air. It will be noted that thedevice of the invention may be inserted into a magazine.

Document FR-A-2,632,936 describes a device for delivering a liquid orsemi-liquid cosmetic product, this device consisting of a relativelythin film of plastic which defines a small sealed volume in which aproduct dose is packaged, this dose being able to be released bycrushing the said volume by pressing it with one's fingers. However,this plastic film of generally spherical shape bursts in one's fingerswhen it is being crushed, making its use unpleasant for the user whowill have his or her fingers impregnated with product.

The object of the invention is to eliminate the aforementioned drawbacksand to provide a device for delivering one or more doses of a fluidproduct, which is simple to use, inexpensive to manufacture, effectivein operation, compact and lighter in weight and which minimizes productwastage during delivery.

For this purpose, the subject of the invention is a device fordelivering one or more doses of a fluid product, each dose beingcontained in a sealed reserve which is defined by an envelope at leastpartially made of a deformable flexible material, so that a crushingpressure exerted on the reserve causes the envelope to burst in order torelease the product contained in the reserve, characterized in that theenvelope is provided locally with at least one region of weaknessforming a pre-aperture, so as to cause the envelope to burst instantlyat the pre-aperture, the flow of product thus being channelled by thepre-aperture in a predetermined orientation. By virtue of the invention,the product is no longer delivered directly in contact with one'sfingers, thereby avoiding one's fingers getting dirty and eliminatingthe risk of injury. Furthermore, since the flow of product is directedin a selected orientation, it is possible to optimize the use of theproduct to be delivered, without unnecessary product wastage. Since theproduct is delivered simply by pressing on the device, its use will befacilitated and speeded up.

Advantageously, the envelope comprises two films made of a plastic orthe like, which are hermetically bonded to each other, for example byadhesive bonding or heat sealing, in a peripheral region in order todefine, between the two films, the reserve containing the product.

In a first embodiment, the pre-aperture consists of a prescoring of theenvelope, preferably in the general form of a cross. In anotherembodiment, the pre-aperture consists of a region of smaller thickness,preferably by local deformation of the envelope.

In yet another embodiment, the peripheral bonding region compriseslocally a weakened heat-sealing region forming the aforementionedpre-aperture, while the rest of the peripheral bonding region is adefinitive heat-sealing weld. Advantageously, the weakened heat-sealingregion is defined between a peripheral portion in the form of a tab ofone of the films and a corresponding portion of the other film, the saidportions being superposed and extending some considerable distance awayfrom the peripheral edge of the reserve.

In a first variant, the aforementioned tab projects into the reserve andis heat sealed in a detachable manner to a corresponding portion of theother film, which has an orifice for delivering the product to theoutside when the tab becomes detached under the effect of the pressureof crushing the reserve.

In another variant, the tab projects outside the reserve and is heatsealed in a detachable manner to a corresponding portion of the otherfilm, apart from two lateral edges of the tab which are heat sealed in adefinitive manner to the other film in order to define at least oneprechannel for opening the reserve.

In a first embodiment, the distal end edge of the tab is welded in adetachable manner in order to define at least one prechannel which canbe opened at the end in order to expel the product. In this case, thetab may be extended beyond the corresponding portion of the other film,so as to be able to fold over and fasten in a detachable manner theprojecting portion of the tab to the other film, in order to isolate thepassage for expelling the product, before its use, from externalcontaminants.

In another embodiment, the distal end edge of the tab is heat sealed ina definitive manner to the other film, in order to define at least oneclosed prechannel, and at least one orifice is made through the taband/or the corresponding portion of the other film in order to expel theproduct when the weakened heat-sealing weld becomes detached under theeffect of the pressure exerted on the reserve.

According to another characteristic, each expulsion orifice may includea projecting end-piece in order to define a nozzle for spraying theproduct.

According to yet another characteristic, each orifice may be coveredwith a protective film, which can be moved aside under the effect of thepressure of the product leaving via the orifice, so as to isolate theorifice from external contaminants before use.

Advantageously, the expulsion orifice may consist of a plurality ofmicro-orifices, arranged for example in the form of a star, in order tospray the product when it is expelled.

According to yet another characteristic, the tab includes at least oneintermediate line of definitive welding to the other film between itsdefinitively heat-sealed lateral edges, the said intermediate line ofwelding being approximately parallel to the said lateral edges in orderto define a plurality of prechannels for delivering the product.

In one particular embodiment of the device, the reserve is in thegeneral form of a hollow bubble containing the product to be delivered.

In another embodiment, the two films forming the reserve are more orless plane and are superposed, at least one of them including anoutwardly domed region, obtained for example by a moulding, in order todefine with the other film the aforementioned reserve, the peripheralregion of the films around the said domed region extending approximatelyin the same plane in order to define a peripheral surface for supportingand gripping the device.

In a variant, the two films include a common line of bending whichpasses right in line with the pre-aperture of the reserve, so that byexerting pressure on the peripheral surface for supporting the device,on either side of the common line of bending, the reserve is crushed bybeing pinched between the two folded-over parts of the device, therebycausing the product to be delivered via the pre-aperture located on theedge of the dihedron formed by the two folded-over parts of the device.

According to another characteristic, the film which is provided with apre-aperture includes, on its external face, a layer of material formingan applicator pad which is hermetically bonded to the periphery of thesaid support surface, so as to impregnate the applicator pad with theproduct via the pre-aperture when the reserve is burst, the applicatorpad serving to apply the product to any chosen surface, it beingpossible for the applicator to be an absorbent paper or a spongy orcottony textile material. In this case, an intercalar free space may beprovided between the applicator pad and the facing film in order toallow the product released by the reserve to spread out uniformly overthe entire surface of the applicator pad.

Advantageously, a protective film which can be moved aside and is bondedto one of the edges of the applicator pad on its external face may beprovided, in order to cover the pad and isolate it from any externalelement that might damage and/or contaminate it.

Preferably, the pre-aperture is located on one of the films,approximately at the centre of the reserve.

The reserve may contain a liquid, creamy, gelatinous or gaseous product.

A second subject of the invention relates to a device for applying anadhesive temporary tattoo.

A device is known, from U.S. Pat. No. 5,578,353, for the transferprinting of a ticket bearing an ink, using a wet sponge or a sprayapplied to the skin. However, such a device requires the use of a wetsponge or of another equivalent instrument, thereby complicating theuse.

Document DE-A-19606839 describes a device comprising an auxiliarysupport, a layer of contact adhesive and a transfer layer between thesupport and the layer of adhesive, the said transfer layer containing abinder which adheres more strongly to the adhesive layer than to thesupport, the transfer layer and/or the layer of adhesive having, on theone hand, fine hollow particles containing water and, on the other hand,a solid alcohol soluble in water, so that pressure exerted on thesupport causes the microparticles to burst in order to apply the saidtransfer layer to a surface. However, such a device requires themanufacture of microspheres in an opaque polymer layer, the said opaquepolymer layer being intended to be transferred to the surface, therebycomplicating the manufacture and increasing the production costs.

The second object of the invention is to eliminate the aforementioneddrawbacks of the prior devices for an adhesive temporary tattoo and toprovide a device for applying the adhesive temporary tattoo which issimple and inexpensive to manufacture and which allows the adhesivetemporary tattoo to be instantly applied to any chosen surface.

For this purpose, the second subject of the invention is a device forapplying an adhesive temporary tattoo using the delivery device definedabove, characterized in that an ink for the adhesive temporary tattoo ispositioned on the external face of the applicator pad so that pressureexerted by the user on the reserve causes the envelope to burst via thepre-aperture, which in turn moistens the applicator pad and instantlytransfers the adhesive temporary tattoo onto the chosen surface.

Advantageously, the device includes a protective film which can be movedaside and is bonded to one of the edges of the applicator pad on itsexternal face, in order to cover the ink for the adhesive temporarytattoo and to isolate it from external elements that might contaminateand/or damage it. The protective film may be provided on its externalface with a layer of adhesive material covered by a peelable protectivefilm so as to make it possible to transfer the tattoo already applied toa surface, onto the said layer of adhesive material after having peeledthe protective film and to apply the said tattoo again to anothersurface.

According to another characteristic, the device includes an additionalfilm hermetically bonded to the periphery of the support surface, on theopposite side from the pre-aperture, so as to define a volume of airbetween the said additional film and the reserve, the said additionalfilm having locally a peripheral weakened-bonding region so thatcrushing pressure exerted on the said additional film causes,successively or simultaneously, the audible bursting of the volume ofair in the weakened-bonding region and the bursting of the reserve viathe pre-aperture.

The invention will be better understood and further aims, details,features and advantages thereof will appear more clearly in the courseof the detailed explanatory description which follows of severalcurrently preferred particular embodiments of the invention, these beinggiven solely by way of non-limiting illustration, with reference to theappended schematic drawings in which:

FIG. 1 is schematic cross-sectional view of a first embodiment of thedelivery device according to the invention, having a pre-aperture at thecentre of one of the films defining the reserve;

FIG. 1A is a view from below of the device in FIG. 1, the film providedwith the pre-aperture being omitted;

FIG. 2 is a view similar to FIG. 1, the device being furthermoreequipped with an applicator pad located facing the pre-aperture;

FIG. 2A is a view from above of FIG. 2, showing the applicator pad byitself;

FIG. 3 is an alternative embodiment of the device in FIG. 2, theapplicator pad being furthermore provided with a protective film whichcan be moved aside;

FIG. 3A is a view from below of FIG. 3, the applicator pad beingomitted;

FIG. 4 is a plan view from above of another embodiment of the deliverydevice according to the invention, the pre-aperture region being definedon an internal peripheral edge of the reserve;

FIG. 5 is a view similar to FIG. 4, the reserve not having a surroundingperipheral support;

FIG. 6 is an alternative embodiment of the device in FIG. 4, thepre-aperture region being defined on an external peripheral edge of thereserve;

FIG. 6A is a cross-sectional view on the line VI in FIG. 6;

FIG. 7 is a view similar to FIG. 6A, but illustrating the reserve devoidof a surrounding peripheral support;

FIG. 8 is a view from above of a device similar to that in FIG. 7, butillustrating a reserve in the general form of a spherical bubble;

FIG. 8A is a view similar to FIG. 8, demonstrating the detachment of theweakened weld of the device during its use;

FIGS. 9 and 9A are sectional views on the line IX in FIGS. 8 and 8A,respectively;

FIGS. 10 and 10A are views similar to FIGS. 8 and 9 respectively, butillustrating an alternative embodiment of the device;

FIG. 11 is a partial and enlarged view of a weakened heat-sealed regionincorporating a plurality of micro-orifices that can be used in theembodiment in FIGS. 4 to 10;

FIGS. 12, 12A, 13, 13A are views similar to FIGS. 8, 8A, 9, 9Arespectively, but illustrating an alternative embodiment of theinvention;

FIGS. 14, 14A, 15 and 15A are similar views to FIGS. 12, 12A, 13 and 13Arespectively, but illustrating yet another alternative embodiment;

FIGS. 16 and 16A are views, from above and from below respectively, of adevice of the type in FIG. 1, in which a common line of bending isformed on the two films right in line with the pre-aperture;

FIG. 17 is a side view of the device in FIG. 16, showing the delivery ofthe product in a selected orientation onto a chosen surface;

FIG. 17A is a view similar to FIG. 17, the device being furthermoreequipped with an applicator pad;

FIG. 18 shows a reserve in the form of a spherical bubble having apre-aperture consisting of a region of smaller thickness;

FIGS. 18A and 18B illustrate the bubble in FIG. 18 during two successivesteps in its use;

FIGS. 19A to 19H are schematic views from above illustrating variousembodiments of the reserve and of the surrounding support of a deviceaccording to the invention;

FIG. 20 is a view similar to FIG. 3, but illustrating a device forapplying an adhesive temporary tattoo, which furthermore includes anadhesive ink layer on the applicator pad; and

FIG. 21 is a view similar to FIG. 2, but illustrating an alternativeembodiment of a device for applying an adhesive temporary tattoo, whichfurthermore includes an adhesive ink layer, a protective film providedwith a peelable film, and an additional film on top of the reserve inorder to generate a bursting noise.

FIG. 1 shows, in section, an approximately plane first film 1 to whichis applied a second film 2 having a peripheral region 2 a which isadhesively bonded or heat sealed to a corresponding peripheral region ofthe film 1 and an outwardly domed central region 2 b, for exampleobtained by moulding, so as to define, between the said domed centralregion 2 b and the facing film 1, a closed space 3 defining a reservefor a product to be delivered. Indicated by the hatched lines is theadhesive-bonding or heat-sealing region 4. The lower film 1 furthermorehas, at its centre, a pre-aperture defined by a prescoring in the formof a cross 5 in order for the product to be delivered to the outside.FIG. 1A shows that the peripheral region 2 a of the film 2 is hatched inorder to indicate the location of the adhesive bonding or of the heatsealing 4. The general shape of the device is approximately rectangular,whereas the reserve 3 has an elliptical general shape seen from above.

The peripheral region 2 a of the film 2 forms with the correspondingportion of the film 1 an annular support serving especially for grippingthe device.

Referring now to FIG. 2, this shows that a layer of material 6 formingan applicator pad is peripherally fastened to the external surface ofthe film 1, by means of a weld bead or bead of adhesive 7, the said beaddefining an intercalar space 8 between the pre-aperture 5 of the film 1and the internal facing surface of the applicator pad 6. This applicatorpad 6 may be an absorbent paper or a spongy or cottony textile material.The purpose of the intercalar space 8 is to allow the product containedin the reserve 3 and leaving via the pre-aperture 5 to be delivered overapproximately the entire internal surface of the applicator pad 6, inorder to allow it to be impregnated with product in an approximatelyuniform manner. Thus, the product may be applied to any chosen surfaceby means of the external surface of the applicator pad 6. Of course, thebonded regions 4 and 7 are hermetically sealed with respect to theproduct to be delivered.

FIG. 3 shows an alternative embodiment in which the upper film 12 has aslight downwardly concave shape and the film 11 more or less follows theshape of the film 12, apart from the central portion lla which isdownwardly domed and provided at its centre with the pre-aperture 15.The reserve 13 here therefore faces downwards, unlike in FIG. 1 wherethe reserve 3 faced upwards.

The films 11 and 12 are connected around their periphery 12 a to anapplicator pad 16 via a peripheral weld bead 17 or bead of adhesive (seeFIG. 3A). The applicator pad 16 is connected via a transverse edge to atab 19 a of a transparent flexible protective film 19 which is intendedto cover the external surface of the applicator pad 16 in order toisolate it from the outside and protect it from any contamination and/ordeterioration.

FIG. 3 shows that the intercalar space 18 provided between the reserve13 and the applicator pad 16 is significantly greater than theintercalar space 8 in FIG. 2, since here the domed surface lla of thereserve faces the applicator pad.

In the variant in FIG. 4, the upper film 22 also has a rectangular shapewith a central portion 22 b approximately in the form of an outwardlydomed spherical cap and a plane peripheral region 22 a. The centralportion 22 b of the film 22 defines, with the lower film (notillustrated), a reserve 23.

The lower film includes an inwardly curved tab 21 a which is adhesivelybonded or heat sealed, as indicated by the hatched region 25, to theinternal surface of the domed portion 22 b of the film 22. This tab 21 ais hermetically fastened by detachable spots of adhesive or a weakenedheat-sealed weld to the portion 22 b of the film 22, in order to allowthis tab 21 a to be detached when pressure is exerted on the reserve 23.When the tab 21 a is detached, the product can diffuse towards theoutside via an orifice 25 a made through the portion 22 b of the film22, right in line with the tab 21 a. Before pressure is exerted on thereserve 23, the orifice 25 a is hermetically sealed by the weakenedbonding 25 to the tab 21 a.

As a variant, it would be possible to provide the orifice 25 a on thelower film and the tab 21 a on the upper film 22, without departing fromthe scope of the invention.

The only edge of the tab 21 a which is not detachable is that which iscommon to the peripheral edge of the portion 22 b of the film 22 whichis heat sealed in a definitive manner to the lower film.

In the variant in FIG. 6, the upper film 32 also has a central portion32 b in the form of a spherical cap and a surrounding plane portion 32a. The reserve 33 is defined between the domed central portion 32 b ofthe film 32 and the facing internal surface of the lower plane film 31(see FIG. 6A).

The pre-aperture region 35 (shown hatched) is defined here by a tab 32 cforming part of the peripheral portion 32 a of the film 32, the said tab32 c extending from a peripheral edge of the central portion 32 b andbeing heat sealed in a definitive manner by all its sides to the lowerfilm 31, apart from its edge 35 b common to the peripheral edge of thecentral portion 32 b, which edge 35 b is connected by a weakened weld tothe lower film 31. The tab 32 c is also connected by a weakenedheat-sealing weld 35, over its entire surface, to the lower film 31, forthe reason explained below. An orifice 35 a is made through the tab 32 cin order to allow the product to be delivered to the outside when theinternal edge 35 b and the entire internal surface 35 of the tab 32 c isdetached from the lower film 31 under the effect of pressure exerted onthe reserve 33. The pre-aperture region 35 thus forms a prechannel forexpelling the fluid, which prechannel, under the effect of the pressure,expands into a channel by detaching the weakened weld, thereby allowingthe fluid contained in the reserve 33 to pass through the channel intothe expulsion orifice 35 a.

In FIG. 7, the two films 131 and 132 do not have a plane peripheralregion but are connected to each other only by their common peripheraledges. In other words, the film 132 has a general shape in the form of aspherical cap and the film 131 has a shape approximately in the form ofa flat disc. The film 132 furthermore includes a tab 132 a whichprojects outwards and which is superposed on a corresponding tab 131 awhich projects to the outside of the film 131. The tab 132 a has anorifice or a projecting spray nozzle 135 a for the product contained inthe reserve 133, the tabs 131 a and 132 a being bonded by a weakenedweld, apart from their external edges which are mutually welded in adefinitive manner.

FIG. 5 shows the same device as in FIG. 4, except that here it does notinclude a plane peripheral surface surrounding the reserve 123. Theupper film 122 has a general shape in the form of a spherical cap, in asimilar manner to the film 132 in FIG. 7. Near its peripheral edge, thefilm 122 has an orifice 125 a which is closed off by an internal tab 121a of the lower film (not illustrated) with a weakened weld 125. Theoperation of the device in FIG. 5 is identical to that in FIG. 4.

As a variant, the element 22 b, 122, 32 b and 132 in FIGS. 4 to 7,respectively, may consist of a rigid shell replacing the mouldedflexible film, thereby allowing the device to be inserted between thesheets of a journal or magazine by placing it via the film 21, 121, 31and 131 on a sheet using a detachable adhesive. Thus, there is no riskof the device bursting under the effect of the pressure of the magazine,when transporting and storing it, and the device can be detached inorder to reposition it on another support or another chosen surface orin order to make it burst by exerting pressure on the flexible planefilm.

In the embodiment illustrated in FIGS. 8 and 9, the reserve 143 has aspherical general shape obtained by joining two hemispherical films 141and 142 together along their common equatorial edge 143 a. The films 141and 142 each have a respective tab 141 a and 142 a which are superposedand project outwards. These tabs 141 a and 142 a are bonded to eachother along their entire sides by a permanent weld, apart from theirinternal edge 145 b and their facing surface 145 which are bonded by aweakened weld, as indicated in the hatched region. The tab 142 a and/orthe tab 141 a have an orifice 145 a emerging in the weakened weld region145 in order to allow the product contained in the reserve 143 to beejected when the weakened weld region 145 has been detached, forming anejection channel 145′ as illustrated in FIGS. 8A and 9A. This isbecause, under the effect of a compressive force exerted on each film,as illustrated by the arrows P in FIG. 9A, the weakened weld region 145becomes detached, forming the channel 145′, thereby allowing the fluidto be ejected via the orifice 145 a as indicated by the arrow F.

Of course, the tab 141 a and/or 142 a may have several product ejectionorifices, as illustrated in FIG. 11. In this figure, several orifices146 arranged in the form of a star emerge in the weakened weld region145 in order to produce a spraying effect or microjets of the productcontained in the reserve 143.

In FIG. 9, an small additional protective film 149 is adhesively bonded,in a detachable manner, or bonded by a weakened heat-sealing weld to theorifice 145 a in order to cover it and isolate it from externalcontaminants or deteriorating agents, especially for hygiene regions.

In FIGS. 10 and 10A, the elements which are identical or similar tothose illustrated in FIGS. 8 and 9 bear the same reference numbersincreased by ten. The variant in FIG. 10 differs from the embodiment inFIGS. 8 and 9 principally by the fact that the tabs 152 a and 151 a herehave a circular general shape instead of the approximately rectangularshape in FIGS. 8 and 9, and by the fact that the expulsion orifice 155 ahere is in the form of a outwardly projecting nozzle instead of thesimple orifice 145 a in FIGS. 8 and 9.

In FIGS. 12 and 13, the elements which are identical or similar to thoseillustrated in FIGS. 8 and 9 bear the same reference numbers increasedby twenty. The variant in FIGS. 12 and 13 differs from the embodiment inFIGS. 8 and 9 essentially by the fact that the orifice for expelling thefluid consists here of the distal edge 165 a of the weakened weld region165 between the tabs 162 a and 161 a. Consequently, when pressure P isexerted on the reserve 163 the tabs 161 a and 162 a become detached,defining a discharge channel 165′, which emerges on the outside at thetip 165 a, in order to eject the product as indicated by the arrow F.Unlike the embodiment in FIGS. 8 and 9 the fluid F in FIGS. 12 and 13 isdelivered to the outside without being sprayed. This is quite suitable,for example, for a creamy, gelatinous or pasty product.

The distal expulsion orifice 165 a in FIG. 13 is covered by an extension169 of the tab 162 a so as to be able to fold over and fasten, in adetachable manner the projecting portion of the tab to the other film inorder to isolate it from external contaminants and/or deterioratingagents, especially for hygiene reasons. Under the effect of thepressurized fluid ejected via the open channel 165′, the extension 169of the tab 162 a becomes detached, as illustrated in FIG. 13A, and alsocontributes to orientating the flow of product F in a defined direction.The extension 169 could also serve as an applicator.

In FIGS. 14 and 15, the elements which are identical or similar to thoseof the embodiment in FIGS. 12 and 13 bear the same reference numbersincreased by ten. The variant in FIGS. 14 and 15 differs essentiallyfrom the embodiment in FIGS. 12 and 13 by the fact that the device inFIGS. 14 and 15 has an intermediate line of permanent welding 175 b inthe weakened weld region 175, the said intermediate line of permanentwelding 175 b extending between the lateral edges of the tabs 171 a and172 a and parallel to the latter, so as to define two narrower parallelchannels 175′ emerging on the outside at the distal end 175 a, so as toobtain two separate jets of fluid F. Of course, several intermediatelines of permanent welding could be provided in order to obtain severaljets of fluid.

In another embodiment of FIG. 2 illustrated in FIGS. 16 and 17, thedevice has an upper film 42, a circular central portion 42 b of which isoutwardly domed and joined to a surrounding plane peripheral portion 42a, and a square-shaped plane lower film 41 which is permanently fastenedto the peripheral plane portion 42 a of the film 42. The film 41 has,right in line with the domed circular portion 42 b of the film 42, aprescoring in the form of a cross 45, preferably at the center of thesaid circular portion 42 b. The reserve 43 is defined between the domedportion 42 b and the subjacent lower film 41. The film 41 and the planeperipheral region 42 a of the film 42 furthermore have a common line ofbending 43 a which extends over their entire length and passes throughthe pre-aperture 45, thereby dividing the device into two foldableparts. Thus, by exerting pressure with one's fingers D (see FIG. 17) oneach foldable part of the device, the reserve 43 is compressed betweenthe two folded parts of the device, thereby causing the reserve to burstvia the pre-aperture in order to eject the product in the direction ofthe arrow F towards a chosen surface S. Under these conditions, the userno longer acts directly on the reserve 43 but on the peripheral parts ofthe films 41 and 42.

In FIG. 17A, an applicator pad 46 is fastened to the external face ofthe film 41 in a manner similar to the embodiment in FIG. 2. Thus, thefluid leaving via the pre-aperture 45 will be able to impregnate theapplicator pad 46.

In FIGS. 18, 18 a and 18 b, the device consists of a hollow bubble 200defining, on the inside, a reserve of 203 for the product to bedispensed, the said bubble 200 having locally an outwardly domeddeformation 205 of smaller thickness, in order to constitute a weakenedregion of pre-aperture by bursting. Of course, the bubble 200 could beobtained by joining two heat-sealed hemispherical films together in adefinitive manner along their common equatorial edge.

Compressing the bubble 200 with one's fingers D causes the weakenedregion 205 to burst, in order to eject the product in the direction ofthe arrow F.

FIGS. 19A to H illustrate various shapes for the reserve and thesurrounding support. In FIGS. 19A to D, the support has, seen fromabove, an approximately square shape while the reserve has circular,square, triangular and irregular shape, respectively. In FIG. 19E to G,the support has a circular shape while the reserves have a circular,square and triangular shape, respectively. In FIG. 19H, the support hasa triangular shape and the reserve has a circular shape. However, therespective shapes of the support and of the reserve may vary in anymanner, without departing from the scope of the invention.

Referring now to FIGS. 20 and 21, two particular embodiments of a devicefor applying an adhesive temporary tattoo will be described.

FIG. 20 is identical to FIG. 3, apart from a layer of ink 20 for anadhesive temporary tattoo, which ink is deposited on the externalsurface of the applicator pad 16. When pressure is exerted on the film12 in order to crush the reserve 13, the pre-aperture 15 bursts, therebyreleasing the liquid into the intermediate space 18. The ejected liquidthen spreads out uniformly over the entire internal surface of theabsorbent pad 16, the latter, once wetted, allowing patterns formed bythe ink 20 to be transferred onto any chosen surface.

The protective film 19 makes it possible to isolate the adhesivetransfer-printing ink 20 from any external deteriorating agent.

In the variant in FIG. 21, the elements which are identical or similarto those illustrated in FIG. 2 bear the same reference numbers increasedby one hundred. The hatched region 104 indicates the permanent bondingbetween the peripheral region 102 a of the film 102 and the lower film101.

In a similar manner to FIG. 20, a layer of adhesive transfer-printingink 110 is positioned on the external surface of the absorbent pad 106and a protective film 109 is fastened by a tab 109 a to a transverseedge of the absorbent pad 106, in order to act as a point of hingeing tothe flexible film 109, which may for example be a transparent film. Thisprotective film 109 is intended to cover the ink 110, and it has, on itslower face, an adhesive layer against which a peelable protective film109 b is pressed. Once the pattern consisting of the ink 110 has beentransferred to a given surface, the temporary protective film 109 b maybe removed from the protective film 109, and this protective film 109may be pressed via its face having the adhesive layer against theprinted pattern, in order to immediately remove this pattern from thesurface where it was applied and allow it to be repositioned on anothersurface.

The device in FIG. 21 furthermore includes an additional plastic film111, of outwardly convex general shape, the peripheral edge llla ofwhich is permanently welded at 112 to the upper face of the film 102, aregion of the said peripheral edge 111 a being connected by a weakenedweld 112 a to the film 102, in order to allow a volume of air 113 lyingbetween the films 111 and 112 to burst when pressure is exerted on theadditional film 111.

When the device in FIG. 21 is used, the protective film 109 with itsfilm 109 b is firstly moved aside, the layer of ink 110 is appliedagainst the surface where it has to be transferred and pressure isexerted on the film 111, thereby causing the volume of air 113 instantlyto burst via the weakened weld 112 a and then causing the reserve ofliquid 103 to be crushed, which reserve in turn bursts via thepre-aperture 105, thereby wetting the applicator pad 106 and thusreleasing the adhesive transfer-printing ink 110 onto the chosensurface.

It will be noted that the films used in the device of the invention arenot necessarily made of plastic, but could be made of metal or ofcomposite materials.

In certain embodiments, the plane support which surrounds the reservecan be used for printing information or patterns. The device may bedesigned to be overall transparent, opaque or coloured.

Although all the devices illustrated have only a single reserve, severalidentical or different reserves could be provided on the same device.

The pre-aperture region will be determined so as to burst above acertain resistance threshold which is high enough to guarantee theintegrity of the reserve throughout its transportation and storage andwhich is sufficiently low to be able to be reached by manual pressure.

Yet another advantage of the invention is that it can be used with onlyone hand.

The support of the device may also be pierced in order to be able to besuspended from a hooking means, for the purpose of its sale.

Although the invention has been described in relation to severalparticular embodiments, it is quite obvious that it is in no way limitedthereto and that it comprises all the technical equivalents of the meansdescribed as well as their combinations, provided that thesecombinations fall within the scope of the invention.

What is claimed is:
 1. Device for delivering one or more doses of afluid product, each dose being contained in a sealed reserve which isdefined by an envelope at least partially made of a deformable flexiblematerial, so that a crushing pressure exerted on the reserve causes theenvelope to burst in order to release the product contained in thereserve, the envelope being provided locally with at least one region ofweakness forming a pre-aperture so as to cause the envelope to burstinstantly at the pre-aperture, the flow of product thus being channelledby the pre-aperture in a predetermined orientation, said envelopecomprising two films made of at least one of a plastic, a metal and acomposite material which are hermetically bonded to each other in aperipheral region in order to define, between the two films, the reservecontaining the product characterised in that the peripheral bondingregion comprises locally a weakened heat-sealing region forming saidpre-aperture, while the rest of the peripheral bonding region is adefinitive heat-sealing weld.
 2. Device for delivering one or more dosesof a fluid product, each dose being contained in a sealed reserve whichis defined by an envelope at least partially made of a deformablematerial, so that a crushing pressure exerted on the reserve causes theenvelope to burst in order to release the product contained in thereserve, the envelope being provided locally with at least one region ofweakness forming a pre-aperture so as to cause the envelope to burstinstantly at the pre-aperture, the flow of product thus being channelledby the pre-aperture in a predetermined orientation, said envelopecomprising two films made of at least one of a plastic, a metal and acomposite material which are hermetically bonded to each other in aperipheral region in order to define, between the two films, the reservecontaining the product, the two films forming the reserve are plane andare superposed, at least one of them including an outwardly domed regionin order to define with the other film said reserve, the peripheralregion of the films around said domed region extending approximately inthe same plane in order to define a peripheral surface for supportingand gripping the device, a layer of material forming an applicator padwhich is bonded on said support surface, so as to impregnate theapplicator pad with the product via the pre-aperture when the reserve isburst, the applicator pad serving to apply the product to any chosensurface, characterised in that an ink for an adhesive temporary tattoois positioned on the external face of the applicator pad so thatpressure exerted by the user on the reserve causes the envelope to burstvia the pre-aperture which in turn moistens the applicator pad andinstantly transfers said adhesive temporary tattoo onto a chosensurface.
 3. Device according to claim 2 wherein the pre-apertureconsists of a prescoring of the envelope in the general form of a cross.4. Device according to claim 2 wherein the pre-aperture consists of aregion of smaller thickness by local deformation of the envelope. 5.Device according to claim 2 wherein the peripheral bonding regioncomprises locally a weakened heat-sealing region forming saidpre-aperture, while the rest of the peripheral bonding region is adefinitive heat-sealing weld.
 6. Device according to claim 2 wherein thepre-aperture is located on one of the films, approximately at the centreof the reserve.
 7. Device according to claim 1 wherein the weakenedheat-sealing region is defined between a peripheral portion in the formof a tab of one of the films and a corresponding portion of the otherfilm, said portions being superposed and extending a distance away fromthe peripheral edge of the reserve.
 8. Device according to claim 9wherein said tab projects into the reserve and is heat sealed in adetachable manner to a corresponding portion of the other film, whichhas an orifice for delivering the product to the outside when the tabbecomes detached under the effect of the pressure of crushing thereserve.
 9. Device according to claim 7 wherein the tab projects outsidethe reserve and is heat sealed in a detachable manner to a correspondingportion of the other film, apart from two lateral edges of the tab whichare heat sealed in a definitive manner to the other film in order todefine at least one prechannel for opening the reserve.
 10. Deviceaccording to claim 9 wherein the distal end edge of the tab is welded ina detachable manner in order to define at least one prechannel which canbe opened at the end in order to expel the product.
 11. Device accordingto claim 10 wherein the tab extends beyond the corresponding portion ofthe other film, so as to be able to fold over and fasten in a detachablemanner the projecting portion of the tab to the other film, in order toisolate the passage for expelling the product, before its use, fromexternal contaminants.
 12. Device according to claim 9 wherein thedistal end edge of the tab is heat sealed in a definitive manner to theother film, in order to define at least one closed prechannel and atleast one orifice is made through the tab through the correspondingportion of the other film in order to expel the product when theweakened heat-sealing weld becomes detached under the effect of thepressure exerted on the reserve.
 13. Device according to claim 12wherein said at least one expulsion orifice includes a projectingend-piece in order to define a nozzle for spraying the product. 14.Device according to claim 12 wherein each orifice is covered with aprotective film which can be moved aside under the effect of thepressure of the product leaving via the orifice, so as to isolate theorifice from external contaminants before use.
 15. Device according toclaim 12 wherein the expulsion orifice consists of a plurality ofmicro-orifices arranged in the form of a star, in order to spray theproduct when it is expelled.
 16. Device according to claim 9 wherein thetab includes at least one intermediate line of definitive welding to theother film between its definitively heat-sealed lateral edges, the saidintermediate line of welding being approximately parallel to the saidlateral edges in order to define a plurality of prechannels fordelivering the product.
 17. Device according to claim 1 wherein thereserve is in the general form of a hollow bubble containing the productto be delivered.
 18. Device according to claim 1 wherein the two filmsforming the reserve are plane and are superposed, at least one of themincluding an outwardly domed region in order to define with the otherfilm said reserve, the peripheral region of the films around said domedregion extending approximately in the same plane in order to define aperipheral surface for supporting and gripping the device.
 19. Deviceaccording to claim 18 wherein the two films include a common line ofbending which passes right in line with the pre-aperture of the reserve,so that by exerting pressure on the peripheral surface for supportingthe device, on either side of the common line of bending, the reserve iscrushed by being pinched between two folded-over parts of the device,thereby causing the product to be delivered via the pre-aperture locatedon the edge of a dihedron formed by the two folded-over parts of thedevice.
 20. Device according to claim 18 wherein a layer of materialforming an applicator pad is bonded to the said support surface, so asto impregnate the applicator pad with the product via the pre-aperturewhen the reserve is burst, the applicator pad serving to apply theproduct to any chosen surface.
 21. Device according to claim 20characterized by an intercalar free space between the applicator pad andthe facing film in order to allow the product released by the reserve tospread out uniformly over the entire surface of the applicator pad. 22.Device according to claim 20 wherein said device includes a protectivefilm which can be moved aside and is bonded to one of the edges of theapplicator pad on the external face, in order to cover and isolate thepad from any external element.
 23. Device according to claim 20 whereinan ink for an adhesive temporary tattoo is positioned on the externalface of the applicator pad so that pressure exerted by the user on thereserve causes the envelope to burst via the pre-aperture, which in turnmoistens the applicator pad and instantly transfers the adhesivetemporary tattoo onto a chosen surface, in order to form a device forapplying an adhesive temporary tattoo.
 24. Device according to claim 23wherein the device includes a protective film which can be moved asideand is bonded to one of the edges of the applicator pad on the externalface, in order to cover the ink and to isolate said ink from externalelements.
 25. Device according to claim 24 wherein the protective filmis provided on the external face with a layer of adhesive materialcovered by a peelable protective film.
 26. Device according to claim 23wherein said device includes an additional film hermetically bonded tothe periphery of the support surface on the opposite side from thepre-aperture so as to define a volume of air between the said additionalfilm and the reserve, the said additional film having locally aperipheral weakened-bonding region so that crushing pressure exerted onthe said additional film causes, successively or simultaneously, theaudible bursting of the volume of air in the weakened-bonding region andthe bursting of the reserve via the pre-aperture.
 27. Device accordingto claim 20 characterized in that the applicator pad is hermeticallybonded to the peripheral region of one of the films of the envelope. 28.Device according to claim 1 wherein the reserve may contain a liquid,creamy, gelatinous or gaseous product.